Home / 30,029,128.52-44,970,953.49-20,781,187.13

Finding the Fourth Proportional to 30,029,128.52, 44,970,953.49 and 20,781,187.13

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Solution

The fourth proportional to 30,029,128.52, 44,970,953.49 and 20,781,187.13 is: 31,121,442.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,029,128.52 : 44,970,953.49 = 20,781,187.13 : x
  2. Step 2: Convert to fraction form
    30,029,128.52/44,970,953.49 = 20,781,187.13/x
  3. Step 3: Cross multiply
    30,029,128.52x = 44,970,953.49 × 20,781,187.13
  4. Step 4: Simplify right side
    30,029,128.52x = 934,549,800,002,644
  5. Step 5: Solve for x
    x = 934,549,800,002,644/30,029,128.52
  6. Step 6: Final answer
    x = 31,121,442.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.